gcc: update to 7.1 with tools * src/build-gcc.mk: update version 7.1.0 * src/cloog.mk: update 0.18.4 * src/gmp.mk: update 6.1.2 * src/isl.mk: update 0.16.1, add no-undefined flag * src/mpfr.mk: update 3.1.6 * src/native-gcc.mk: update 7.1.0 * src/isl-1-fixes.patch: removed file * dist-files.mk: remove reference to patch files, add mingw-w64 patch * src/build-gcc-1-mingw-float.patch: removed patch * src/native-gcc-1-mingw-float.patch: removed patch * src/build-gcc-2-intrinsics.patch: removed patch * src/native-gcc-2-intrinsics.patch: removed patch * src/mingw-w64.mk: update to 5.0.2 * src/gcc-1-mingw-float.patch: remove patch * src/gcc-2-darwin-no-pie.patch: remove patch * src/mingw-w64-2-pthreads.patch: new file * src/pthreads.mk: apply mingw patches to mingw sources before running configure

This file is part of MXE.
See index.html for further information.

This patch has been taken from:
http://sourceforge.net/tracker/?func=detail&aid=2995373&group_id=6389&atid=306389

--- zziplib-0.13.58/zzip/__fnmatch.h	2009-08-23 07:38:22.000000000 -0400
+++ zziplib-0.13.58/zzip/__fnmatch.h	2010-01-09 13:32:11.311799466 -0500
@@ -4,6 +4,7 @@
 
 #include <zzip/conf.h>
 #include <stdio.h>
+#include <string.h>
 
 #ifdef ZZIP_HAVE_FNMATCH_H
 #include <fnmatch.h>